San Antonio Weather in August

What's the weather like in San Antonio (Texas) in August 2024?

The climate in San Antonio during August can be summarized as very hot and reasonably dry.

August is in the summer in San Antonio and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a warm 35°C (96°F), whilst at night 23°C (74°F) is normal.

San Antonio weather averages (imperial / metric)
Daytime temperature 35.3°C 95.5°F
Nightly temperature 23.2°C 73.7°F
Average temperature 29.2°C 84.6°F
Daily sunshine 10 hrs
Avg rainfall 55 mm 2.2 ins
Rainy days 5 days
Sea temperature 29.4°C 85°F
Humidity 65%
Windspeed 14.8kph 9 mph

On average August is the 6th wettest month of the year in San Antonio with around 55mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 10 hours of sunshine per day.

August temperatures in San Antonio

San Antonio average temperature in August

August rainfall

San Antonio average rain in August

August hourly sunshine

San Antonio average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Antonio in August 2024.

Other monthly averages

Best places to visit in August

UV index Best time to go?

San Antonio weather stats

San Antonio weather statistics
Hottest month: July 34.8°C 94.6°F
Driest month: March 37mm 1.5ins
Sunniest month: July 10.6hrs
Coldest month: January 15.8°C 60.4°F
Wettest month: May 94mm 3.7ins
Map showing location of San Antonio (29.42412, -98.49363) San Antonio map pin © Google

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